It takes 723 J of energy to change 25,0 g of a substance by 35.0°C. What is the specific heat of the substance? Report your answer with an appropriate number of significant figures, J/g°C​

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.

In order for a high temperature boiler or steam engine to produce superheated water, or steam: the heat source must be greater than 100°c the water must be permitted to evaporate quickly the system must be sealed and become pressurized above atmospheric pressure the vapor pressure must be kept below 760 mm(hg)