For which of the following reactions is the kp/kc ratio greater than 300 k?
Answer 1
A. Ni(CO)4(g) ⇌ Ni(s) + 4CO(g)B. C(s) +2H2(g) ⇌ CH4(g)C. CaCO3(s) ⇌ CaO(s) + CO2(g)D. N2(g) + O2(g) ⇌ 2 NO(g) The answer is A. Ni(CO)4(g) ⇌ Ni(s) + 4CO(g) The Kp/Kc ratio is equal to (RT)Δn . K is a constant and the temperature is kept constant. Thus, the Kp/Kc ratio depends on Δn or the difference in moles of product gas and reactant. The reaction with the highest Kp/Kc ratio is Ni(CO)4(g) ⇌ Ni(s) + 4CO(g) with a Δn of 3.
answer 2
reaction C. has the greatest value of at 300 K Explanation: Here is the complete question Conversion between Kc and Kp For which of the following reactions is the ratio Kp/Kc greater than 300 K? a. N2(g) + O2(g) ⇌ 2 NO(g)
BC(s) +2H2(g) ⇌ CH4(g)
vs. Ni(CO)4(g) ⇌ Ni(s) + 4CO(g)
D. CaCO3(s) ⇌ CaO(s) + CO2(g) Solution where R = molar gas constant = 8.314 J/mol-K, T = temperature = 300 K and n = number of moles of products – number of moles of reactants To reaction A. number of moles of gaseous products = 2, number of moles of gaseous reactants = 2. Then n = 2 – 2 = 0 So for reaction b. number of moles of gaseous products = 1, number of moles of gaseous reactants = 2. So n = 1 – 2 = -1 (not counting the solid) So, for reaction c. number of moles of gaseous products = 5, number of moles of gaseous reactants = 1. So n = 4 – 1 = 3 (not counting the solid) So, for reaction d. number of moles of gaseous products = 2, number of moles of gaseous reactants = 0. So n = 2 – 0 = 2 (not counting the solid) So, since for reaction c which is the largest value. So reaction c. has the highest value at 300K
answer 3
d.) circular motion requires a force to give it centripetal acceleration.
answer 4
nacl or sodium chloride is an ionic compound. indeed, an ionic compound belongs to a compound made up of positively and negatively charged ions. in this case, na (sodium) tends to lose an electron when reacting with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, making it positively charged (na+), when chlorine reacts, it usually gains an electron to form an ion called chloride, making it negatively charged (since ions are oppositely charged, they attract each other.