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6. The molar gas constant (R) is equal to?
- 6.64 Jmol^-1K^-1
- 8.31 Jmol^-1K^-1
- 9.11 Jmol^-1K^-1
- 1.38 Jmol^-1K^-1
7. The permeability of free space is equal to?
- 2pi x10^-7 NA^-2
- 4pi x10^-11 NA^-2
- 4pi x10^-7 NA^-2
- 4 x10^-7 NA^-2
8. The mass of an electron is equal to?
- 9.11x10^-31kg
- 9.11x10^-34kg
- 9.11x10^-19kg
- 9.11x10^-27kg
9. Avogradro's Constant is equal to?
- 6.67x10^23 mol^-1
- 6.02x10^23 mol^-1
- 6.63x10^23 mol^-1
- 6.67x10^23 mol^-1
10. The mass of an neutron is equal to?
- 1.675x10^-27kg
- 1.675x10^-19kg
- 6.02x10^-27kg
- 9.11x10^-27kg
11. The Charge of an electron is equal to?
- -1.6x10-19C
- 1.6x10-19C
- -1.6x10-31C
- 1.6x10-27C
12. Planck's Constant (h) is equal to?
- 6.63x10^-31 Js
- 6.63x10^-34 Js
- 6.63x10^-27 Js
- 6.02x10^-34 Js
13. The mass of an alpha particle is equal to?
- 9.11x10^-27kg
- 6.02x10^-27kg
- 6.646x10^-27kg
- 9.11x10^-19kg