17. It is found, on heating a gas, its volume increases by 50%and pres

1.	17. It is found, on heating a gas, its volume increases by 50%and pressure decreases to 60% of its original value. If theonginal temperature was -15°C, find the temperature towhich it was heated ?[Ans.-40.8°C]
Answer» <P>Answer: Answer Let the ORIGINAL volume (V)=1 and the original pressure (P)=1 and the temperature given (T)=−15 ∘ C=−15+273=258K V 1 or new volume after heating = original volume +50% of original volume 1+1× 100 50 =1+ 2 1 = 2 3 Here P 1 is the decreased pressure P 1 =60% = 100 1×60 =0.6 T1=? T PV = T 1 P 1 V 1 258 1×1 = 2 3 × T 1 0.6 T 1 =232.2K T 1 =232.2−273 =−40.8 °c

17. It is found, on heating a gas, its volume increases by 50%and pressure decreases to 60% of its original value. If theonginal temperature was -15°C, find the temperature towhich it was heated ?[Ans.-40.8°C]

Answer»

<P>Answer:

Answer

Let the ORIGINAL volume (V)=1 and

the original pressure (P)=1 and

the temperature given (T)=−15

∘

C=−15+273=258K

or new volume after heating = original volume +50% of original volume

1+1×

100

=1+

Here P

is the decreased pressure

=60%

100

1×60

=0.6

T1=?

258

1×1

0.6

=232.2K

=232.2−273

=−40.8 °c