Choose the correct answer 1. You have a 90 cm long iron rod at 15 ° C that heats up to 300 ° C. What happens with the rod is that: A. It melts. B. Double the length. C. Decrease its length a few centimeters. D. Increase its length by a few millimeters. 2. A student blows up a balloon and places it in his home freezer. After a long time, the balloon is removed from the freezer and it is observed that: A. The volume decreases as a certain amount of air escapes. B. It remains the same, because the air inside it does not expand or contract. C. The volume increases, because the air inside it expands D. The volume decreases as the air inside it contracts

Q: 5. Some students believe that teachers are full of hot air. If I inhale 2.2 liters of gas at a…

A: Given that, The initial volume, V1 = 2.2 L The initial temperature of the gas, T1 = 180C = 291 K The…

Q: 5. Newton's Law of Cooling can be used to predict the temperature of a cooling liquid in a room that…

A: SOlution: Given that T(m)=114(0.86)m+72 room temperature is 72 F

Q: A 50.0 g iron rod is heated to an unknown initial temperature. While cooling down to a temperature…

A: According to equation of specific heat -  Q=mc∆T Where,  Q= Heat gain and loss  m = Mass  c =…

Q: During a bout with the flu an 80-kg man ran a fever of 39.0°C instead of the normal body temperature…

A: Mass of the man, m = 80 kg Body temperature during flu, T1 = 39°C Normal body temperature, T2 = 37°C…

Q: an initial volume of an ideal gas is compressed to one-half its original volume, and to twice its…

A: According to question we need to find--- what happens to the pressure after change ?

Q: A lead ball with a radius of 2.50 cm is heated to a temperature of 145°C.  A) If it is dropped into…

A: radius of the lead ball=2.50 cm temperature to which the lead ball is heated=145°C Assuming that…

Q: 2. Two 10-kg blocks of ice are used to make an ice sculpture. To do this, the artist uses a…

A:

Q: An insulated beaker with negligible mass contains 0.25 kg of water at a temperature of 85 °C. How…

A: here we have to use two formula:- 1) when temperature is changing :-     Q=mc∆T  here,  Q :- heat…

Q: 2.A 1.60-mol sample of hydrogen gas is heated at constant pressure from 296 K to 410 K. (a)…

A:

Q: 9. An insulated beaker with negligible mass contains 0.250 kg of water at a temperature of 75.0…

A:

Q: 3. The same energy Q enters five different substances as heat. The temperature of 3 g of substance A…

A:

Q: Which of the following statements in regard to temperature is not physically correct? a.…

A: When heat is added or removed from the body the temperature of the body varies accordingly.

Q: Choose the correct answer: 1. A student blows up a balloon and places it in his home freezer. Since…

A: Since student want the balloon size to increase , the external pressure must decrease. Since…

Q: Emily is testing her baby’s bath water and finds that it is too cold, so she adds some hot water…

A:

Q: A piece of copper at 35 degrees Fahrenheit is dropped into a glass of water at 10 degrees…

A: Since Copper and water both are good conductor of heat, so heat transfer takes place.

Q: A silver block has a mass of 1 kg and specific heat capacity of silver is 0.240 J/g°C. What is the…

A: Given data:  Mass (m) = 1 kg = 1000 g Specific heat capacity (c) = 0.240 J/g.°C Heat energy released…

Q: What must (necessarily) happen when heat is added to a material? A. The temperature of the material…

A:

Q: A shower is 11.0 m from the hot water heater.  The copper pipe has a radius of 1.11 cm and a…

A: From the heat loss formula, θt=kAT2-T1dx Where, θ/t be defined as the rate of heat loss. k be…

Q: 35°C. Determine the error in measuring the distance due to the expansion of the rod. The coefficient…

A: When solids are heated there is a thermal linear expansion in them . Let the length of rod be L when…

Q: What does the symbol 'a' (alpha) represent in the linear thermal expansion equation? A. It…

A: The linear thermal expansion equation is given by: ΔL=LαΔT We will explain the symbol α.

Q: The number of kilocalories in food is determined by calorimetry techniques in which the food is…

A: The objective of the question is to calculate the energy content of a peanut in kilocalories per…

Q: 4. A copper bar lies between two heat sources given by T₁ = 100°C and Tc = 20°C. The area of the…

A: We know that when there is a temperature gradient heat flows from high temperature to low…

Q: How much heat is required to heat 10.0 g of liquid isobutane at -25°C to 23°C? The specific heat of…

A:

Q: A glass beaker holds 0.4000 L at room temperature. it is heated up to 90°C. a) By how much does the…

A: When a material is heated the average separation between the particles increase. This increment in…

Q: Suppose a cold front blows into your area and drops thecurrent temperature of 90°F to 50.0°F. a.…

A: Hai, since there are multiple sub parts posted, we will answer the first three sub parts. (a) The…

Q: The temperature of water in a swimming pool decreases by 5.0 K during the night. The mass of the…

A: Given, The temperature of water decreases by 5 k mass of water in the pool is 560,000 kg specific…

Q: A steel plate has a hole drilled through it. The plate is put into a furnace and heated. What…

A: When the heat is provided to any metal then the kinetic  energy  atom inside the metal increase…

Q: Which one of the following statements is incorrect? A. The metal with higher a value expands more…

A:

Q: 1. The heat conducted through a bar depends on which of the following? A. The coefficient of linear…

A: The heat conducted through a depends on which of the given options.

Q: As I use sandpaper on some rusty metal, the sandpaper gets hot because: a. heat is flowing from the…

A: Given a sandpaper and rusty metal.We find out the reason of sandpaper gets hot.

Q: Select the correct answer.  John is riding a ski lift to the top of Wildcat Mountain. He removes…

A: The problem is based upon the basic concept of friction, heat and energy. The concept of friction is…

Q: What is the change in area (in cm?) of a 60.0 cm by 150 cm automobile windshield when the…

A:

Q: A sample of a liquid has a mass m and a specific heat capacity c.  When an amount of heat Q is…

A: The heat supplied to a mass can be expressed, dQ = mc dT Where, dQ = heat supplied  m = unit mass  c…

Q: Q7. A copper rod, an aluminium rod and a brass rod, each of 6 m length and 1 cm diameter, are placed…

A:

Q: If two small beakers of water, one at 70°C and one at 80°C, are emptied into a large beaker, what is…

A: Let say one Beaker of water having mass, m1 and at temperature , T1= 700C and another Beaker of…

Q: A bolt hole in a brass plate has a diameter of1.21 cm at 19.62°C.  What is the diameter of the hole…

A:

Q: The change in temperature of a substance when heated, depends on its specific heat capacity. a. If…

A: Given: Specific heat capacity of lead (Clead)=120 J/kgk Mass of lead ball (m) = 0.50 kg Initial…

Q: Consider two objects, A and B, which has different temperatures. Also assume that A is hotter then…

A: There are two objects A and B , both at different temperatures. The initial tempertaure of A is…

Q: A 0.400 kg sample of aluminum (c = 9.10 x 102 J/kg°C) at 95.0 °C is dropped into a 0.550 kg pot of…

A:

Q: 14. A granite ball of radius 2.00 m and emissivity 0.45 is heated to 135°C. a. Convert the given…

A: a) To convert temperature from Celsius to Kelvin, TK=TC+273.15TK=135+273.15KTK=408K

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.