Determine the heat change (in kilojoules) when 14.87 g of water (H2O) is cooled from 43.4 C to -25.19 C.

Q: What is the amount of heat (value of q) when 22.8 g of aluminum is heated from 20.0℃ to 425℃?

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: How much heat is required to warm 1.70 kg of sand from 24.0 ∘C to 100.0 ∘C?

A: The amount of heat required to increase the temperature of sand is numerically expressed as ms∆T…

Q: A sample of of water with a mass of 15.6 g at 77.9 °C is cooled so that amount of heat released to…

A: Answer: It is a 3 step process: 1. Cooling of water up to its melting point 2. Freezing of water 3.…

Q: How much heat (in J) is required to warm 1.97 grams of substance G (specific heat capacity 0.850…

A:

Q: A 155.0 g piece of copper at 146 oC is dropped into 250.0 g of water at 15.3 oC. (The specific heat…

A: The heat lost by copper will be equal to the heat gained by water as there is no loss of heat to the…

Q: A knowm amount of heat is transferred to a sample of aluminum and the aluminum raises its…

A: Heat transferred can be calculated using the following equation,

Q: How much heat ( in joules) does it take to heat 45.0 g of 23.0 C water until it is steam at 112.0 C?

A: Answer: Heat (in joule) = 117319.5 J

Q: 115-g sample of steam at 100 ̊C is emitted from a volcano. It condenses, cools, and falls as snow at…

A:

Q: Calculate the energy (in kj) required to heat 0.282 grams of water from -43.3 Celsius to -5.1

A: Heat required , Q=mc ×temperature difference.

Q: mass

A:

Q: Suggest a reason why the heat required to vaporize 102 g of water is so much higher than the heat…

A: Given information: Mass of water = 102 g Temperature change = 75 ℃

Q: Calculate the initial temperature of a 332.5g sample of water that released 32,000J of heat and had…

A: Given: The final temperature is 3.57 °C. The heat released is 32000 J. The mass of water is 332.5 g.…

Q: How much heat is required to change 216.2g of ice at 0 degrees C to water 0 degrees C?

A: We have to find how much heat is required to change 216.2g of ice at 0 degrees C to water 0 degrees…

Q: An arctic explorer is trying to create drinking water by converting an ice ball into liquid. The ice…

A: Given that : The mass of ice = 225 g The initial temperature of ice = -23°C The final temperature of…

Q: What is the amount of heat (value of q) when 22.8 g of aluminum is heated from 20.0℃ to 425℃? The…

A: The specific heat capacity of a substance is defined as the heat required to raise the temperature…

Q: The temperature of a 16.5 g sample of gold increases from 21.3°C to 38°C. If the specific heat of…

A:

Q: Suppose that 25 g of each of the following substances is initially at 28.0 ∘C. What is the final…

A: The problem is related to specific heat. It relates to heat, mass of a substance and change in…

Q: A 100.0 g sample of solid ammonia is heated from –77.65 °C to –40 °C. How much heat (in kJ to two…

A: Mass of solid ammonia = 100 gram Initial temperature = - 77.65℃  Final temperature = - 40℃  The…

Q: A student heated 50.00 g of an unknown metal in boiling water and added it to 125.0 g of water at…

A:

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

A: Mass of ice = 10.6 g   This process involves the following steps Heat associated with the…

Q: How much heat is required to warm 1.50 kg of sand from 24.0 ∘C to 100.0 ∘C

A: Given: Mass of water = 1.5 kg = 1500 g Initial temperature (T1) = 24°C  Final temperature (T2) =…

Q: How much heat (kJ) is absorbed by 948.0 g of water in order for the temperature to increase from…

A:

Q: Determine the enthalpy change when 185 g of water vapor at 121 ° C, undergoes phase changes until it…

A: Number of moles of water vapor = mass/mol.wt. = 185 g/(18.015 g/mol) = 10.2692 mol Given…

Q: In the laboratory a student finds that it takes 34.3 Joules to increase the temperature of 13.7…

A:

Q: 2. How much heat must be removed from 155 g of water to cool it from 92.3 °C to 21.6°C? 16

A: Given that the final temperature is 21.6 degree Celsius and the initial temperature is 92.3 degree…

Q: 107 g of Cu at 108.9\deg C was added to 258.7 g of H2 O at 17.4\deg C. If the specific heat of…

A: The objective of the question is to calculate the final temperature of the water and copper mixture.

Q: how much heat is released when a 27.7g sample of ethylene glycol at 42.76 is cooled to 32.5 c?

A:

Q: 3 How much beat is required to heat 150 g of ice from -15°C to water at O °C2

A: Applying formula Q= mc∆t

Q: How many calories of heat does it take to change the temperature of 208.6 g of ice from -46.1°C to…

A:

Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

A:

Q: Chemistry 1. A pool of lava exhibits Group of answer choices nuclear energy thermal energy…

A: Lava is extremely hot and average temperature is about 750°C .A pool can be used to produced…

Q: Determine the final temperature of a gold nugget (mass = 376 g) that starts at 288 K and loses 4.85…

A: Specific Heat Capacity of gold is =0.128 J/gc Initial temperature = T1 = 288K…

Q: How much heat (in cal) is needed to heat a container of water (with a mass of 5 kg) (specific heat…

A: Given, Note: 1Kg = 1000 g Mass of water (m) = 5 Kg = 5000 g Specific heat capacity of water (Cp) =…

Q: How many Joules of energy would be required to heat 35g of water from 23C to 29C?

A: Specific heat capacity of a substance can be defined as the amount of energy required to raise…

Q: If 40.0 kJ of energy is absorbed by 500.0 g of water at 10.0 oC, then what is final temperature of…

A: Q = m . s . (T2-T1)

Q: In joules, how much heat is released when 44.0 g of Ag cools from 199. to 129

A:

Q: 1. A thermometer placed in a solution undergoing a chemical reaction indicates an increase in…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: 8. What is the mass of a sample of glass (specific heat = 0.50 J/g°C), if it requires 490 J of heat…

A: The question is based on the concept of chemical thermodynamics. It involves calculation of the mass…

Q: What is the amount of heat (value of q) when 22.8 g of gold is heated from 20.0℃ to 425℃? The…

A:

Q: How much heat is required to raise the temperature of 7.90x10^2 g H2O from 38.4C to 85.4C?

A: Answer-5 To solve this question following relation will be used: Q=mS(Tfinal-Tinitial) Here: Q=heat…

Q: calculate the heat lose (in Joules) by 115 g of water as it cools from 71.4 C to 34.4 C

A: Given data, Mass of water = 115 g Initial temperature = 71.4oC Final temperature = 34.4oC

Q: What change in energy is required to heat 55.00 g of water at 15.00 0C to vapor at 180.0 0C?

A: The quantity of heat transfers from one form to another is denoted as Q. Given the mass of…