Question

The volume of a gas at 20°C is 100CC at normal pressure when it is heated to 100°C its volume is 125CC at the same pressure thevolume coeficient of the gas is​

Answer 1

Answer:

Given: Volume of gas at 20

o

C is 100 cc, and volume at 100

o

C is 125 cc. Pressure is same throughout the process.

Solution:

Let, v

i

be the initial volume and v

f

be the final volume and △T be the temperature difference.

∴ △T=100−20=80

o

C

We know that v

f

=v

i

(1+γ△T), where γ is volume coefficient of the gas.

Putting v

i

=100, v

f

=125, $${\triangle T}$$=80, we get

125=100(1+80γ)

∴γ=

320

1

The closest answer in the option is

300

1

o