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Chapter 7 Study Of Gas Laws | Number Problems

Question 18

A certain mass of a gas occupies 2 liters at 27oC and 100 pascals. Find the temperature when volume and pressure become half of their initial values

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V = 2 litres

P = 100 Pa

T = 300 K

T1 =?

P1 = 1/2 x 100 = 50 Pa

V1 = 1/2 x 2

V1 = 1 litre

From Gas equation

PV/T = P1V1/T1

100 x 2/300 = 50 x 1/T1

T1 = 75 K

T1 = 75-273

= - 198oc

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Question 18

A certain mass of a gas occupies 2 liters at 27oC and 100 pascals. Find the temperature when volume and pressure become half of their initial values

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

V = 2 litres

P = 100 Pa

T = 300 K

T1 =?

P1 = 1/2 x 100 = 50 Pa

V1 = 1/2 x 2

V1 = 1 litre

From Gas equation

PV/T = P1V1/T1

100 x 2/300 = 50 x 1/T1

T1 = 75 K

T1 = 75-273

= - 198oc

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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