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Calorimetry

A system expa...

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A system expands from 2L volume to 10L volume against an external pressure of 1 bar when 300J of heat is supplied to it. What is the change in internal energy of the system

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50 J

heat is supplied to a gaseous system simultaneously the gas expands against external pressure

2 a t m

0.8 L

. The change in internal energy of the system will be:

1 a t m

pressure with a volume

800 c m^{3}

100 J

of heat is supplied to the gas, it expands to

1 L

at constant pressure. The change in its internal energy is

30 k c a l

is supplied to a system and

4200 J

of external work is done on the system so that its volume decreases at constant pressure. What is the change in its internal energy.

= (J = 4200 J / k c a l)

20 K c a l

is supplied to the system and

8400 J

of external work is done on the system so that its volume decreases at constant pressure. The change in internal energy is (

J = 4200 J / k c a l

)

Q. A system generates

50 J

of electrical energy, and delivers

150 J

of pressure-volume work done against the surroundings while releasing

300 J

of heat energy. What is the change in the internal energy of the system?

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