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​Water has a specific heat capacity of 4.2 J g–1 K–1 at room temperature, a latent heat of vaporization equal to 2257 J g–1, and a boiling point of 100 °C. What are the specific heat capacity, latent heat of vaporization and boiling point of methane?
D
C
B
A
Researchers have developed a skin patch which can detect and measure very small concentrations of ions, sugars, amino acids, proteins and hormones which remain when sweat evaporates. What allows the presence of these substances in sweat?
Water has a specific heat capacity of 4.2 J g–1 K–1 at room temperature, a latent heat of vaporization equal to 2257 J g–1, and a boiling point of 100 °C. What are the specific heat capacity, latent heat of vaporization and boiling point of methane?
The following electron micrograph shows part of a palisade mesophyll cell. Which of the labelled structures controls the exchange of substances to and from the cell?
