Question

To what temperature should be the hydrogen at 327°C be cooked at constant pressure so that the root mean square velocity of its molecules becomes half of its previous value(a) –123°C(b) 120°C(c) –100°C(d) 0°C

Answer 1

I hope this is fully help full for you

please my friend

mark as a BRAINLIEST

Answer 2

Dear Student,

◆ Answer -

(a) −123 ℃

● Explanation -

RMS velocity of hydrogen is given by formula -

v = √(3kT/M)

v = (√3k/M) √T

At temperature 327 °C = 600 K,

v = (√3k/M) √600

At half the previous velocity,

v' = v/2

(√3k/M) √T' = (√3k/M) √600 / 2

(√3k/M) √T' = (√3k/M) √150

T' = 150 K

T' = 150 - 273 ℃

T' = −123 ℃

Thanks dear. Hope this helps you...