Chemistry, asked by mandurizvi7944, 1 year ago

If a gas sample has a pressure of 30.7 kPa at 0.00°C, by how much does the temperature have to decrease to lower the pressure to 28.4 kPa?


Anonymous: ___k off

Answers

Answered by shaurakalra
0

Answer:

T

2

=

20.5

C

Explanation:

In this question I assume that the volume is unchanged and therefore, we can use the following law:

P

T

=

k

Then,  

P

1

T

1

=

P

2

T

2

T

2

=

T

1

P

1

×

P

2

P

2

=

273.15 K

30.7

kPa

×

28.4

kPa

=

252.69 K

Therefore, the temperature should be lowered to:  

252.69

273.15

=

20.464

C

T

2

=

20.5

C

to 3 sig figs.

Similar questions