A solution is a homogenous mixture of a solute (the substance being dissolved) mixed with a solvent (the substance doing the dissolving). Solution concentration is a measurement of the amount of solute compared to solvent.
Nathan works at a restaurant and his boss asks him to make a liter pitcher of sweet tea. He asks specifically for him to add 50 g of
sugar per 250 ml. How many grams of sugar are in the entire pitcher?
es )
20 g
A)
B)
25 g
C
2009
250 g
D)

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.