200 cm3 of a gas at 25ºC exerts a pressure of 700 mmHg. Calculate its pressure if its volume increase 350 cm3 at 75ºC.

godstamtam

7 years ago

Correct
P1 V1/ T1 = P2 V2 / T2

P1 = 700
V1 = 200
T1 = 25+273 = 298
P2 = ?( unknown)
V2 = 350
T2 = 75*273

Therefore P2 = P1 V1 T2/ V2 T1
P2 = 700 * 200 * 348 / 350 * 298
P2 = 48720000/104300
P2 = 467.11
Hope u understand

Victorudoezi

6 years ago

sorry
700×200×348/350×298
48720000/104300
=467.1141

Saidnisg

3 years ago

soln
p1v1/T1=P2V2/T2
P1=700
V1=200cm3
T1=25celcius+273from Kelvin scale.=298
V2=350
T2=75celcius+273=348
P2=?
therefore, from general gas equation we have
P1V1/T1=P2V2/T2
we make P2 the subject of the formula.since we are looking for The value of P2.
P2=P1V1T2/V2T1
700*200*348/350(298)
Therefore. P2=467.1141

mirianchidera

7 years ago

the answer is meant to be D and i have noticed some wrongly marked question, pls go through your question and answer

Sensei

17 hours ago

we know who ask my school self 🤔😭🙏

DesmondBuwaX

1 week ago

clean

Victorudoezi

6 years ago

solv
P1 V1/T1=P2 V2/T2
= P1=700
V1=200
T1=25°c+273=298
V2=350
T2=75°c+273=348
P2=?
therefore
you fill it accordingly it formula
= 700×200×298=41720000
=350×348=121800
P2=41720000/121800
=342.5287
hope you understood