NH4COONH2 (s) 2NH3 (g) + CO2 (g) ,if equlibrium pressure is 3 atm for the above reaction .Kp for the reaction is :
4
27
4/27
1/27
A radioactive nucleus will not emit :
alpha and beta rays simultaneously
beta and gamma rays simultaneously
gamma and alpha rays
gamma rays only
If the Vrms is 30 R1/2 at 27oC then calculate the molar mass of gas in kilogram .
1 Kg
2 Kg
0.001 Kg
0.002 Kg
The standard molar heat of formation of ethane ,CO2 and water are respectively - 21.1 , - 94.1 and - 68. 3 kcal .The standard molar heat of combustion of ethane will be :
- 372 kcal
162 kcal
- 240 kcal
183.5 kcal
72X180 zXA , Z and A are :
69 , 172
172 , 69
180 , 70
182 , 68
A.
69 , 172
When an alpha particle is ejected , results in
➔ decrease in atomic weight by four units
➔ decrease in atomic number of two When a beta particle is ejected , results in
➔ no change in atomic weight
➔ increase in atomic number by one unit when an particle is ejected results in
➔ no change
72X180 68A172 69B172 69X172