input: Write a python function to plot a bar chart for a given dataset using matplotlib.
  assert plot_bar_chart([1, 2, 3, 4, 5]) == None
  assert plot_bar_chart([10, 20, 30, 40, 50]) == None
  assert plot_bar_chart([5, 10, 15, 20, 25]) == None
output: def plot_bar_chart(data):
      import matplotlib.pyplot as plt
      
      plt.bar(range(len(data)), data)
      plt.xlabel('Index')
      plt.ylabel('Value')
      plt.title('Bar Chart')
      plt.show()