An infrared lamp operating at a wavelength of 8.95 x10-7 m is used to heat up 2.50 ⋅ 102 g of water from 20.0°C to 90.0°C. Calculate the number of photons needed to do so, assuming that all of the infrared energy is converted into thermal energy.

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

The answer is c - the principal of original lateral continuity. 

Not a  mixture of two common elements that can be separated by physical means.