Question

Which of the following statements are true? ...(their is 4 CORRECT answers) ...

A. According to Graham's Law of Effusion, gases that have low molar masses have higher speeds than gases with high molar masses.

B. Boyle's Law states that pressure is directly proportional to volume.

C. Kinetic Molecular Theory states that the size of a gas particle is significant in comparison to its volume.

D. Gases will deviate from ideal behavior if pressure is very low.

E. An endothermic reaction has a negative change in enthalpy.

F. The value of work for the expansion of an ideal gas is negative.

G. The following is correct balance chemical equation that goes with CONSTANT H_f^o of acetic acid (HC₂H₃O₂): H⁺ (aq) + C₂H₃O₂^-(aq)---> HC₂H₃O₂(aq)

H. The specific heat of sand is 0.84 J/g ^oC while that of glass (pyrex) is 0.75 J/g^oC. One (1.00) g of sand will therefore heat up faster than 1.00 g of glass (pyrex) assuming other conditions are similar.

I. Tiny pieces of matter do not have wave properties.

J. The electrons of an oxygen atom can be described up to 99% certainty using probability maps called orbitals.

K. The energy emitted in the electronic transition n=7 to n=6 is more than the energy emitted in the electronic transition n=4 to n=3.

L. The angular momentum quantum number, ℓ , determines the shape of an orbital while the principal quantum number , n ,primary determines the energy of the orbital.

M. A continuous spectrum is emitted from a hydrogen lamp which is a proof that the energy of electrons is quantized.

N. Bohr's theory successfully explained the line spectrum that arises from a neon lamp.

O. Radio waves have shorter wave-length than that of microwaves.

Answer 1