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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