CameraIcon

SearchIcon

MyQuestionIcon

360

You visited us 360 times! Enjoying our articles? Unlock Full Access!

First Law of Thermodynamics

The internal ...

Question

The internal energy of gas at A is 10 J, and amount of heat supplied to change its state to C through the path AC is 200 J. Calculate the internal energy at C.

Open in App

Solution

According to the first law of thermodynamics
$d Q = d U + d W$
So for path AC
$(U_{C} - U_{A}) = d Q - d W = 200 - 40$
$U_{C} = 160 + U_{A}$
$U_{C} = 160 + 10$
$U_{C} = 170 J$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The given figure shows a change of state A to state C by two paths ABC and AC for an ideal gas. Calculate the internal energy at C if the internal energy of gas at A is 10 J and amount of heat supplied to change its state to C through the path AC is 200 J.

Q. In the figure, an ideal gas changes its state from state

A

C

A B C

A C

.
The internal energy of gas of

A

30 J

and the amount of heat supplied to change its state to

C

A C

210 J

. Calculate the internal energy of gas at

C

.

Q. In the given graph an ideal gas changes its state from

A

C

A B C

A C

. The internal energy of gas at

A

10 J

and the amount of heat supplied in path

A C

200 J

. The internal energy

(i n J)

C

6 k^{2}

. What is the value of

k

?

Q. A gas in the initial state A having pressure

{5 N m}^{- 2}

{2 m}^{3}

is changed to state C having pressure

{15 N m}^{- 2}

{6 m}^{3}

following paths ABC and AC. Path ABC includes path AB and BC. The state B has pressure

{15 N m}^{- 2}

{2 m}^{3}

. Calculate:
(a) Path along which work done is least.
(b) Internal energy at C, if the internal energy of gas at A is 10J and amount of heat supplied to change its state to C through the path AC is 200J.
(c) Amount of heat supplied to gas to go from A to B, if internal energy of gas at state B is 10J.
Find the value of

W_{A C} + U_{C} + Q_{A B}

.

Q. The given figure shows a change of state A to state C by two paths ABC and AC for an ideal gas. Calculate the:
(1) Amount of heat supplied (in J) to the gas to go from A to B if the internal energy of a gas at state B is 20 J.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

First Law of Thermodynamics

CHEMISTRY

Watch in App

explore_more_icon

Explore more

First Law of Thermodynamics

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon