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What is the enthalpy of atomisation?

The enthalpy of atomisation is the enthalpy change when 1 mole of gaseous atoms is formed from its constituent element, in standard conditions.
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Answered by Eugeni R. • Chemistry tutor
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Outline the process of mitosis

Meiosis is the process of cell division that produces two identical diploid cells, and consists of four stages. The first stage is called prophase, where the chromosomes condense and cross over to form bival...
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Answered by Anastasia R. • Biology tutor
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What are the different enzymes involved in replication and what do they do?

There are many enzymes which are crucial for replication. The first is helicase which unwinds the double helix at the replication fork. DNA gyrase then reduces the strain caused by the unwinding of the helix...
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Answered by Hana D. • Biology tutor
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What controls the different types of aeolian transport?

There are 3 main types of aeolian transport - suspension, saltation and surface creep. Suspension involves sand particles being carried within the air. Saltation is the bouncing of grains along the surface b...
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Answered by Hannah K. • Geography tutor
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How does a neuron transmit a signal across a synapse?

When an action potential from a pre-synaptic neuron approaches a synapse, the change in membrane potential causes voltage-gated calcium ion channels to open across the pre-synaptic bulb. Due to the high diff...
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Answered by Scott W. • Biology tutor
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