The average speed at T 1 K and most probable speed at T 2 K of C O 2 gas is 9 × 10 4 cm/sec. The values of T 1 and T 2 are Options: A . &nbsp2143K; 1694K B . &nbsp1726K, 2126K C . &nbsp1684K; 2143K D . &nbsp1684K; 3368K

Answer: Option C : C ¯ C = C p √ 8 R T 1 M π = √ 2 R T M 8 T 1 π = T 2 T 1 T 2 = π 8 = 22 7 1 8 = 22 56 T 1 = 1684 K T 2 = 2143 K

The average speed at T1 K and most probable speed at T2 K of CO2 gas i

Question

The average speed at

T_{1} K

and most probable speed at

T_{2} K

C O_{2}

gas is

9 \times 10^{4}

cm/sec. The values of

T_{1}

and

T_{2}

are

Options:

A . 2143K; 1694K

B . 1726K, 2126K

C . 1684K; 2143K

D . 1684K; 3368K

Answer: Option C
:
C

¯ C = C_{p}

\sqrt{\frac{8 R T_{1}}{M π}} = \sqrt{\frac{2 R T}{M}}

\frac{8 T_{1}}{π} = T_{2}

\frac{T_{1}}{T_{2}} = \frac{π}{8} = \frac{22}{7} \frac{1}{8} = \frac{22}{56}

T_{1} = 1684 K

T_{2} = 2143 K

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