Determine the enthalpy of formation for na
Determine the enthalpy of formation (ΔHo) for Na (Sodium in solid state)? Isn't it zero, because it's in its stable form? However, it looks like it's not zero. Can somebody confirm this?
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Calculate the molar heat capacity of benzene at the constant pressure? It takes 330 Joules of energy to raise the temperature of 24.6g of benzene from the 21.0°Cto 28.7°C at constant pressure.
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A focused CO2 laser beam putting out a continuous wave (λ0 = 10,600 nm) of 3 kW is able of burning a hole via a quarter-inch thick stainless steel slab in around 10 seconds. Find out the irradiance if such a beam has a focused spot area of
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