Question

A bulb was heated from 27ŗC to 227ŗC at constant pressure. Calculate the volume of bulb if 200 ml of air measured at 27ŗC was expelled during process –

• A. 300 ml
• B. 400 ml
• C. 500 ml
• D. 350 ml

Answer 1

Answer: (C)

500 ml

Answer 2

Let volume of bulb be V ml

Volume of air at 300K given out = 200 ml.

Volume of air at 500K given out :

$\frac { 200 } { 300 }$=

Or, V₂ = $\frac { 100000 } { 300 }$

Volume of air at 500 K =$\frac { 100000 } { 300 }$

Therefore, again using eq.

=

V = 500 ml