What is the Gibbs free energy at 298 K for this reaction? C(s) + 2H2(g) CH(g) ΔH = –74.85 kJ/mol ΔS = –0.08084 kJ/(mol·K) Is the reaction spontaneous at 298 K (room temperature)? (3 points)

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What effect might melting sea ice have for people who live in coastal areas?