Question

A 2.0-mole sample of an ideal gas is gently heated at constant temperature 330 K. It expands from initial volume 19 L to final volume V2. A total of 1.7 kJ of heat is added during the expansion process. What is V2? Let the ideal-gas constant R = 8.314 J/(mol • K).

A- 41 L
B- 26 L
C- 32 L
D- 35 L

Answer 1

@Koikkara

Answer 2

@agent0smith

Answer 3

It might be D but i dont know. I only guessed

Answer 4

I forgot the equation ... ask agent !

Answer 5

theres an equation for this?

Answer 6

isnt it this R = 8.314 J/(mol • K) @Koikkara

Answer 7

yup..that is the ideal gas constant ...

Answer 8

so is that the formula i use?

Answer 9

@Koikkara

Answer 10

At constant temperature the change in potential energy will be 0
Now use the first law of thermodynamics -

\(Q=\Delta U+ \Delta W\)

The \(\Delta U \) is change in potential energy which is 0

So u r left with this-
Q=\(\Delta W\)

Q is the heat supplied and W is the work done

Answer 11

I agree with @imqwerty ..:-)
Furthermore, remember this is a reversible isothermal expansion.

Answer 12

Thanks both

Answer 13

Yw;)

Answer 14

yw(;