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1) If the kelvin temperature of a gas sample in a steel tank increases to three times its original value , what will happen to the pressure?

I think It will increase. Is this correct?

By what factor does the gas pressure change?

2) A gas sample at a constant pressure shrinks to one fourth its initial volume. What will happen to its temperature?
I think It will decrease. Is this correct?

By what factor did the kelvin temperature of the gas change?

Please help, thanks

2 answers

#1.
P1/T1 = P2/T2
T goes up 3x, P goes up 3x.

#2.
(P1V1)/T1 = (P2V2)/T2
P1 and P2 don't change.
V1 =1; V2 = 1/4
V goes down to 1/4; T goes down to 1/4
Check my thinking.
so all you need is that.