Q (9): A quantity of gas has a volume of 250 L at 17 C° and 3 atm of pressure. To what volume must the gas be increased for the gas to be under STP condition? a) 78.4 L b) 706 L c) 88.5 L d) 771 L e) 797 L
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
plz, physics , please solve question 9
![A ray is incident on miror Mt at an angle of (0,75") to the normal.
Q (6): A car starts its motion from rest and travels a 150 m in 15 s while moving along a straight line
O (4): Two mimors make an angle of 120° with each other as illustrated in Figre.
O (5): A 50-N force is the only force on a 2-kg object that starts from rest. When the force has been
Q (7): A sphere of mass m slides on a frictionless path ABC. If the sphere starts from rest at point B,
Find the direction of the ray after it is reflected from mirror Ma
b) 25
e) 35
d) 55
a) 65
e) 45°
acting for 2 m the rate at which it is doing work is:
b) 25 W
c) 75 W
d) 100 W
e) 500 W
a) 2.5 W
with constant acceleration. The final speed in (m/s) of this car is:
a) 20
b) 30
e) 15
d) 12
e) 25
the speed of the sphere (in m/s) at point B is:
30 m
15
a) 28
b) 38
c) 17.2
d) 24.2
e) 19.8
O (8): If a 3 kg ball is thrown straight up into the air with initial speed of 25 m/s, the kinetie p
(in J) of the ball at maximum height is:
a) 12.5
b) 25
c) Zero
d) 50
e) 2
O (9): A quantity of gas has a volume of 250 L at 17 C° and 3 atm of pressure. To what volume
must the gas be increased for the gas to be under STP condition?
a) 78.4 L b) 706 L
c) 88.5 L
d) 771 L
e) 797 L
Q (10): The coefficient of linear expansion of steel is 11 x 106C0. A steel ball has a volume of
exactly 100 cm' at 0 C. When heated to 100 Co, its volume becomes:
a) 100.33 cm
b) 100.0011 cm
c) 100.0033 cm
d) 100.000011 cm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41d2f645-4df3-4e47-bd33-ed5842981b01%2F88b618a8-c0dd-4fdb-b52d-9a046b66ea90%2Fl6p9eor_processed.jpeg&w=3840&q=75)
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