The rate of disappearance of hbr in the gas phase reaction 2hbr(g)→h2(g)+br2(g) is 0.140 m s-1 at 150°c. the rate of appearance of h2 is m s-1.

The reaction rate is the rate at which reactants convert to the product. The rate of appearance of hydrogen is

The given reaction,

2 moles of HBr degrade to form 1 mole of Hydrogen and 1 mole of bromine.

The rate of disappearance of HBr = 0.140 m

Since the molar ratio between HBr and Hydrogen is  2:1.

So,

Where,

- Rate of appearance of Hydrogen

- Rate of disappearance of HBr

Put the value,

Therefore, the rate of appearance of hydrogen is .

To know more about the rate of reaction,

link

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.