please help me answer number 3, parts A, B, and C

2. Considering Part B of the lab, when the test tube was placed in hot water, did the value of Kiget bigger. smaller or remain constant? 3. Dinitrogen tetroxide (colorless gas) is converted to nitrogen dioxide (dark reddish brown gas) and is endothermic in the forward direction. a. Write the balanced equation tor this reaction. b. If a closed container containing a mixture of these two gases at equilibrium is a light brown in color when it as at room temperature (20.0C), what change in color would you expect to observe. if the container is placed in boiling water (100.0C) ? c. If a closed container containing a mixture of these two gases at equilibrium is a light brown in color when it is at room temperature (20.0C), what change in color would you expect to observe if the container is placed in ice water (0.0C) ? 4. Hydrogen gas (colorless) reacts with pure iodine vapor (purple) to give hydrogen iodide gas (colorless). a. Write the balanced equation for this reaction. b. If the equilbrium mixture of these three gases is light purple in color, what change in color would you expect to observe if more hydrogen gas were added to the system? c. If the equilibrium mixture of these three gases is light purple in color, what change in color would you expect to observe if some of the hydrogen iodide gas were removed from the system? 5. Consider the following equilibrium- heat+CaCO3(s)CaO(s)+CO2igi a. If the pressure of CO2ig is increases, in which direction will the equilibrium shift? b. If the temperature is increased, in which direction will the equilibrium shift? c. If the temperature is decreased, in which direction will the equilibrium shift