Question

20ml of hydrogen measured at 15°C are heated to 35°C. What is the new volume at same pressure?

Answer 1

20ml of hydrogen measured at 15°C are heated to 35°C. What is the new volume at same pressure?

Here V1 = 20ml,

Let V2 be x ml.

T1 = 15°C or 288K,

T2 = 35°C or 308K.

According to Charles law,

=) V2/308 = 20/288

=) V2 = 21.38 ml.

Answer 2

Answer:

Explanation:

20ml of hydrogen =15 degree C

Now on heated =35 degree C

We know that

1ml of hydrogen =15*35/20

1ml of hydrogen = 3*7/4

= 21/4

= 1.25ml

now with the help of Charles Law

We use same volume that is 20

So

V1= 20ml= 0.02L

T1= 15degreeC= 288K

V2=?

T2= 35 degree C= 308K

V1/T1= V2/T2

V2= V1xT2/T1

V2= 6.16/288

V2= 0.0213

V2= 21.3ml

Hope it helps u